* Better-than-expected US data boosts stocks
* Euro up 1 pct vs dollar; Dollar index hits 3-month low
* Oil above $81/barrel; gold up
* US Treasuries fall on improved risk appetite
By Manuela Badawy
NEW YORK, Aug 2 (Reuters) - Global stocks surged to a 2-1/2 month high on Monday, supported by better-than-expected U.S. economic data and encouraging corporate results, including strong European bank earnings, while the euro broke above a key technical level.
The U.S. manufacturing sector grew in July for the 12th straight month and at a rate that was slightly better than expected, while U.S. construction spending unexpectedly rose 0.1 percent in June as increased investment in public projects offset the 15th straight monthly decline in private non-residential construction, reports showed.
The upbeat data boosted crude oil and gold prices and pushed the euro up against the dollar to hit its highest since May, while government bonds were pressured as investor sentiment improved and lifted appetite for risky assets.
"What we've seen over the last few weeks has been decent earnings, but economic data has been on the weak side. But today we had good earnings out of Europe, and we actually had strong economic data, and that is piling on to a decent start to the month," said Ryan Detrick, senior technical strategist at Schaeffer's Investment Research in Cincinnati, Ohio.
The Dow Jones industrial average <
> was up 175.67 points, or 1.68 percent, at 10,641.61. The Standard & Poor's 500 Index <.SPX> gained 19.68 points, or 1.79 percent, to 1,121.28. The Nasdaq Composite Index < > rose 39.68 points, or 1.76 percent, to 2,294.38.The MSCI world equity index <.MIWD00000PUS> rose above 2 percent, reaching a two-and-a-half month high, while the Thomson Reuters global stock index <.TRXFLDGLPU> gained 1.97 percent. Emerging stocks <.MSCIEF> rose 2.13 percent to a three-month high.
The FTSEurofirst 300 index <
> surged 2.57 percent as upbeat results from BNP Paribas <BNPP.PA> and HSBC <HSBA.L> boosted optimism for corporate earnings.BNP Paribas, France's biggest listed bank, rose 5 percent after posting higher-than-expected second-quarter net profit thanks to lower loan provisions and strong retail banking, which offset the impact on its business of volatile financial markets.
HSBC said its half-year profits hit $11.1 billion, more than double the $5 billion a year ago, sending its shares up more than 5 percent.
EURO'S MOVE
The euro <EUR=> rose to $1.3176, up 1 percent on the day and its best level against the greenback since early May. Analysts said euro buying gained momentum after the currency broke $1.3125. That was the 38.2 percent retracement of a decline that began last November and ended in June around 1.1876, its lowest level since 2006.
The dollar edged up against the yen after the Institute for Supply Management said U.S. manufacturing activity did not slow as much as economists had predicted in July. The dollar rose to 86.75 yen <JPY=> from around 86.50 yen before the data.
The dollar index however, hit a three-month low, hurt by worries that the U.S. economy's recovery is losing steam.
The index, which measures the greenback's value against a basket of currencies, hit a three-month low of 81.354 <.DXY>, dipping 0.70 percent to 80.965, roughly a 50 percent retracement of its November-to-June rally.
"We're seeing a disconnection as U.S. data stays weak yet risk appetite is strong. Weak U.S. data will translate into risk aversion at some point," said Tom Levinson, currency strategist at ING.
Sterling hit a six-month high versus the dollar <GBP=D4> of $1.5820 and outpaced the euro <EURGBP=D4>, rising to a four-week high of 82.64 pence.
U.S. Treasury debt prices fell, with the 30-year bond shedding a full point in price after the stronger-than-expected growth in the manufacturing sector in July.
The 30-year Treasury bond <US30YT=RR> was trading one point lower in price to yield 4.05 percent, up from 3.99 percent late on Friday, while benchmark 10-year notes <US10YT=RR> were 11/32 lower to yield 2.95 percent from 2.91 percent. The 2-year U.S. Treasury note <US2YT=RR> was down 1/32, with the yield at 0.5697 percent.
U.S. crude oil <CLc1> rose $2.41, or 3.05 percent, to $81.36 per barrel, while spot gold prices <XAU=> rose $7.30, or 0.62 percent, to $1187.70 an ounce as the euro firmed and oil prices gained. (Additional reporting by Leah Schnurr and Steven Johnson in New York, Neal Armstrong in London; Editing by Dan Grebler)